maybe is almost like a question, "maybe i could go somewhere", may be is a statement "there may be a car there"

An assessment is a process of rating or judging something against a concrete set of standards. For example, if you are assessing a patient you may be taking readings such as blood pressure and respiration rate, and making a judgment on the state of the patient based on the results. An estimation is a reasonable guess or opinion. For example, if someone hands you a box of marbles and asks you how many are in there, without counting them, you would say something like 'In my estimation, the box contains 50 marbles.'

Today, food products which have positive effects on human health in addition to nutritional value are highly regarded. Probiotic dairy products, especially yogurt, are popular the world. In this study potato and rice starch at the concentrations of 0.1%, 0.5 % and 1% in yogurt were examined to understand each concentrations effect on growth and survival of the probiotic bacteria Lactobacillus Acidophilus. The samples produced in three replications and maintained at 4 ° C during 21 days ( OR during 21 days of storage at 4 ° C ) were evaluated in terms of pH rate, acidity,and syneresis percentage. Probiotic bacteria counts were then compared with the control sample. i.e. probiotic yogurt without prebiotic substances. - add what you hope to accomplish by looking at the results here- some minor grammar issues and a few places where it was better to just end the sentence instead of using a comma/and. I'm no expert though so take this version with a grain of salt

Until is used more often when a deadline is concerned, by is technically correct but wouldn't be used in this situation.

Over past weeks is a more non specific way of saying it, something you might read in a book or see in a dialogue in a movie. Over the past weeks is more specific and applies better to what you might be talking about at the time. Over the past few weeks is also an even more specific way of saying it. All three are technically correct but the second and third should probably be used.

Just say "one one", or depending if its a book or something it could be "chapter one, section one" replace section with whatever applies in your situation

Something really simple and mindless could be Family Guy, Futurama, or The Simpsons. As for live action maybe something like Friends, The Office, or Seinfeld

The grammar is basically the same meaning. "attracted to" makes it seem the bee is being attracted "attracted by" makes it seem the flower is attractive